2W39

Glc(beta-1-3)Glc disaccharide in -1 and -2 sites of Laminarinase 16A from Phanerochaete chrysosporium


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.1 Å
  • R-Value Free: 0.152 
  • R-Value Work: 0.138 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

X-Ray Crystal Structures of Phanerochaete Chrysosporium Laminarinase 16A in Complex with Products from Lichenin and Laminarin Hydrolysis

Vasur, J.Kawai, R.Andersson, E.Igarashi, K.Sandgren, M.Samejima, M.Stahlberg, J.

(2009) FEBS J. 276: 3858

  • DOI: 10.1111/j.1742-4658.2009.07099.x
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The 1,3(4)-beta-D-glucanases of glycoside hydrolase family 16 provide useful examples of versatile yet specific protein-carbohydrate interactions. In the present study, we report the X-ray structures of the 1,3(4)-beta-D-glucanase Phanerochaete chrys ...

    The 1,3(4)-beta-D-glucanases of glycoside hydrolase family 16 provide useful examples of versatile yet specific protein-carbohydrate interactions. In the present study, we report the X-ray structures of the 1,3(4)-beta-D-glucanase Phanerochaete chrysosporium Laminarinase 16A in complex with beta-glucan products from laminarin (1.6 A) and lichenin (1.1 A) hydrolysis. The G6G3G3G glucan, in complex with the enzyme, showed a beta-1,6 branch in the acceptor site. The G4G3G ligand-protein complex showed that there was no room for a beta-1,6 branch in the -1 or -2 subsites; furthermore, the distorted residue in the -1 subsite and the glucose in the -2 subsite required a beta-1,3 bond between them. These are the first X-ray crystal structures of any 1,3(4)-beta-D-glucanase in complex with glucan products. They provide details of both substrate and product binding in support of earlier enzymatic evidence.


    Organizational Affiliation

    Department of Molecular Biology, University of Agricultural Sciences, Uppsala, Sweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PUTATIVE LAMINARINASE
A
298Phanerochaete chrysosporiumMutation(s): 0 
Gene Names: lam16A
Find proteins for Q874E3 (Phanerochaete chrysosporium)
Go to UniProtKB:  Q874E3
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BGC
Query on BGC

Download SDF File 
Download CCD File 
A
BETA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-VFUOTHLCSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
LGC
Query on LGC

Download SDF File 
Download CCD File 
A
(3S,4R,5R,6S)-3,4,5-TRIHYDROXY-6-(HYDROXYMETHYL)TETRAHYDRO-2H-PYRAN-2-ONE
GLUCONOLACTONE
C6 H10 O6
PHOQVHQSTUBQQK-SQOUGZDYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.1 Å
  • R-Value Free: 0.152 
  • R-Value Work: 0.138 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 38.147α = 90.00
b = 46.713β = 90.00
c = 152.550γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
REFMACrefinement
MOSFLMdata reduction
REFMACphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-07-21
    Type: Initial release
  • Version 1.1: 2011-08-17
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Other, Version format compliance